MGC DIAGNOSTICS CORP

CUSIP: 552768103 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

Note: Option positions (PUT/CALL) are excluded.

Q4 2017
Shares 11,470 Value ($000) $126 Avg Close — Range —
Q3 2017
Shares 10,185 Value ($000) $91 Avg Close — Range —